Effect of grain size and crystallographic structure on the corrosion and tribocorrosion behaviour of a CoCrMo biomedical grade alloy in simulated body fluid
Authors: Namus, R., Rainforth, W.M., Huang, Y. and Langdon, T.G.
Journal: Wear
Volume: 478-479
ISSN: 0043-1648
DOI: 10.1016/j.wear.2021.203884
Abstract:CoCrMo alloys are used in hip and knee replacements due to their excellent long-term survival rates. However, high failure rates have recently been observed associated with adverse tissue reactions. CoCrMo alloy surfaces undergo microstructural changes during wear, including the formation of ε-martensite and, occasionally, a nanocrystalline surface layer. It is not clear whether these changes are beneficial or detrimental to the performance of the component. Thus, high-pressure torsion (HPT) was employed to produce different grain sizes and crystallographic structures in a CoCrMo alloy and the corrosion and tribocorrosion behaviour were critically investigated as a function of grain size. The results reveal a degradation of the corrosion resistance for the HTP processed samples. The contributions of mechanical and corrosion material loss in tribocorrosion is also examined.
https://eprints.bournemouth.ac.uk/35392/
Source: Scopus
Effect of grain size and crystallographic structure on the corrosion and tribocorrosion behaviour of a CoCrMo biomedical grade alloy in simulated body fluid
Authors: Namus, R., Rainforth, W.M., Huang, Y. and Langdon, T.G.
Journal: WEAR
Volume: 478
eISSN: 1873-2577
ISSN: 0043-1648
DOI: 10.1016/j.wear.2021.203884
https://eprints.bournemouth.ac.uk/35392/
Source: Web of Science (Lite)
Effect of grain size and crystallographic structure on the corrosion and tribocorrosion behaviour of a CoCrMo biomedical grade alloy in simulated body fluid
Authors: Namus, R., Rainforth, W.M., Huang, Y. and Langdon, T.G.
Journal: Wear
Volume: 478-479
Pages: 203884(1)-203884(9)
Publisher: Elsevier
ISSN: 0043-1648
DOI: 10.1016/j.wear.2021.203884
Abstract:CoCrMo alloys are used in hip and knee replacements due to their excellent long-term survival rates. However, high failure rates have recently been observed associated with adverse tissue reactions. CoCrMo alloy surfaces undergo microstructural changes during wear, including the formation of ε-martensite and, occasionally, a nanocrystalline surface layer. It is not clear whether these changes are beneficial or detrimental to the performance of the component. Thus, high-pressure torsion (HPT) was employed to produce different grain sizes and crystallographic structures in a CoCrMo alloy and the corrosion and tribocorrosion behaviour were critically investigated as a function of grain size. The results reveal a degradation of the corrosion resistance for the HTP processed samples. The contributions of mechanical and corrosion material loss in tribocorrosion is also examined.
https://eprints.bournemouth.ac.uk/35392/
Source: Manual
Preferred by: Yi Huang
Effect of grain size and crystallographic structure on the corrosion and tribocorrosion behaviour of a CoCrMo biomedical grade alloy in simulated body fluid
Authors: Namus, R., Rainforth, W.M., Huang, Y. and Langdon, T.G.
Journal: Wear
Volume: 478-9
Issue: August
ISSN: 0043-1648
Abstract:CoCrMo alloys are used in hip and knee replacements due to their excellent long-term survival rates. However, high failure rates have recently been observed associated with adverse tissue reactions. CoCrMo alloy surfaces undergo microstructural changes during wear, including the formation of ε-martensite and, occasionally, a nanocrystalline surface layer. It is not clear whether these changes are beneficial or detrimental to the performance of the component. Thus, high-pressure torsion (HPT) was employed to produce different grain sizes and crystallographic structures in a CoCrMo alloy and the corrosion and tribocorrosion behaviour were critically investigated as a function of grain size. The results reveal a degradation of the corrosion resistance for the HTP processed samples. The contributions of mechanical and corrosion material loss in tribocorrosion is also examined.
https://eprints.bournemouth.ac.uk/35392/
Source: BURO EPrints